From: Miss Islington (bot) <31488909+miss-islington@users.noreply.github.com>
Date: Tue, 2 Sep 2025 17:04:13 +0000 (+0200)
Subject: [3.13] gh-136599: Add tests for long_hash (GH-138335) (#138391)
X-Git-Tag: v3.13.8~129
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=a8460a285a9455fe0ab0ccf484e6f965a7cacf8e;p=thirdparty%2FPython%2Fcpython.git

[3.13] gh-136599: Add tests for long_hash (GH-138335) (#138391)

gh-136599: Add tests for long_hash (GH-138335)
(cherry picked from commit 2d3711dc06657e072a83b580636cbb0009658636)

Co-authored-by: Pieter Eendebak <pieter.eendebak@gmail.com>
Co-authored-by: Sergey B Kirpichev <skirpichev@gmail.com>
---

diff --git a/Lib/test/test_long.py b/Lib/test/test_long.py
index 41b973da2c7d..b247f3322c2b 100644
--- a/Lib/test/test_long.py
+++ b/Lib/test/test_long.py
@@ -1642,5 +1642,21 @@ class LongTest(unittest.TestCase):
         # GH-117195 -- This shouldn't crash
         object.__sizeof__(1)
 
+    def test_hash(self):
+        # gh-136599
+        self.assertEqual(hash(-1), -2)
+        self.assertEqual(hash(0), 0)
+        self.assertEqual(hash(10), 10)
+
+        self.assertEqual(hash(sys.hash_info.modulus - 2), sys.hash_info.modulus - 2)
+        self.assertEqual(hash(sys.hash_info.modulus - 1), sys.hash_info.modulus - 1)
+        self.assertEqual(hash(sys.hash_info.modulus), 0)
+        self.assertEqual(hash(sys.hash_info.modulus + 1), 1)
+
+        self.assertEqual(hash(-sys.hash_info.modulus - 2), -2)
+        self.assertEqual(hash(-sys.hash_info.modulus - 1), -2)
+        self.assertEqual(hash(-sys.hash_info.modulus), 0)
+        self.assertEqual(hash(-sys.hash_info.modulus + 1), -sys.hash_info.modulus + 1)
+
 if __name__ == "__main__":
     unittest.main()